What CPM are you getting with your advertisers? Please list both your current CPM and the advertiser. Me - pretty poor - CPX Interactive - $0.05 CPM
I set my own CPM at about $2 with ADSDAQ, which is one of it's cool features. Here's a more detailed ADSDAQ Review.
With the first two from this list: from the first up to 1.80$ per 1000 impressions of popup (average is about 0.70$ for now) abd from the second up to 1$ per 1000 impressions of inpage banner
you can't make much money form banners impresson unless you atleast 50k page views a day if you have 5k page view then you may earn well with popunder
What is your fill % ? I use AdsDaq on a couple of my sites but i set it at .50 and I only get a 30-40% fill rate